The decision to withdraw from the body governing international mail delivery has been widely seen as another salvo in the Trump administration’s campaign against what it deems as unfair trade practices benefitting China.

Trump’s announcement is hardly the first time Russia has been accused of significant breaches of the Intermediate-Range Nuclear Forces Treaty—but a U.S. withdrawal would have debatable strategic value.

On Thursday night, the Senate approved two treaties by unanimous consent, bringing to 15 the number of treaties approved by the Senate during the Obama Administration. This is the fewest number of treaties approved by the Senate in a four-year period or eight-year period at least since World War II.